underlay

underlay

[v. uhn-der-ley; n. uhn-der-ley]
verb (used with object), underlaid, underlaying.
1.
to lay under or beneath.
2.
to provide with something laid underneath; raise or support with something laid underneath: The manufacturer underlays the chrome finish with a zinc coating.
3.
to extend across the bottom of.
noun
4.
something underlaid.
5.
Printing. a piece or pieces of paper put under type or cuts to bring them to the proper height for printing.

Origin:
before 900; Middle English underleyen, Old English underlecgan; see under-, lay1

Dictionary.com Unabridged

underlie

[uhn-der-lahy]
verb (used with object), underlay, underlain, underlying.
1.
to lie under or beneath; be situated under.
2.
to be at the basis of; form the foundation of.
3.
Grammar. to function as the root morpheme or original or basic form of (a derived form): The form “boy” underlies “boyish.”
4.
Finance. to be primary to another right or security.

Origin:
before 900; Middle English underlyen (v.), Old English underlicgan. See under-, lie2

Dictionary.com Unabridged
Based on the Random House Dictionary, © Random House, Inc. 2014.
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World English Dictionary
underlay
 
vb , -lays, -laying, -laid
1.  to place (something) under or beneath
2.  to support by something laid beneath
3.  to achieve the correct printing pressure all over (a forme block) or to bring (a block) up to type height by adding material, such as paper, to the appropriate areas beneath it
 
n
4.  a layer, lining, support, etc, laid underneath something else
5.  printing material, such as paper, used to underlay a forme or block
6.  felt, rubber, etc, laid beneath a carpet to increase insulation and resilience

underlie (ˌʌndəˈlaɪ)
 
vb , -lies, -lying, -lay, -lain
1.  to lie or be placed under or beneath
2.  to be the foundation, cause, or basis of: careful planning underlies all our decisions
3.  finance to take priority over (another claim, liability, mortgage, etc): a first mortgage underlies a second
4.  to be the root or stem from which (a word) is derived: "happy" underlies "happiest"
 
'underlier
 
n

Collins English Dictionary - Complete & Unabridged 10th Edition
2009 © William Collins Sons & Co. Ltd. 1979, 1986 © HarperCollins
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Etymonline
Word Origin & History

underlay
O.E. under lecgan "to support by placing something beneath;" see under + lay (v.).

underlie
O.E. under licgan "to be subordinate to, to submit to;" see under + lie (v.2). Meaning "to lie under or beneath" is attested from 1600; fig. sense of "to be the basis of" is attested from 1852 (implied in underlying).
Online Etymology Dictionary, © 2010 Douglas Harper
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